Panasonic CS-RZ35WKRW Service Manual
  1. Manuals
  2. Brands
  3. Panasonic Manuals
  4. Air Conditioner
  5. CS-RZ35WKRW
  6. Service manual

Panasonic CS-RZ35WKRW Service Manual

Hide thumbs Also See for CS-RZ35WKRW:
Table of Contents

Advertisement

Quick Links

This service information is designed for experienced repair technicians only and is not designed for use by the general public.
It does not contain warnings or cautions to advise non-technical individuals of potential dangers in attempting to service a product.
Products powered by electricity should be serviced or repaired only by experienced professional technicians. Any attempt to service
or repair the products dealt with in this service information by anyone else could result in serious injury or death.
There are special components used in this equipment which are important for safety. These parts are marked by
Diagrams, Circuit Board Diagrams, Exploded Views and Replacement Parts List. It is essential that these critical parts should be replaced
with manufacturer's specified parts to prevent shock, fire or other hazards. Do not modify the original design without permission of
manufacturer.
R32 REFRIGERANT
– This Air Conditioner contains and operates with refrigerant R32.
THIS PRODUCT MUST ONLY BE INSTALLED OR SERVICED BY QUALIFIED PERSONNEL.
Refer to Commonwealth, State, Territory and local legislation, regulations, codes, installation & operation manuals, before the
installation, maintenance and/or service of this product.
CS-RZ25WKRW
CS-RZ35WKRW
CS-RZ42WKRW
CS-RZ50WKRW
OFF/ON
OFF/ON
POWERFUL/
ECO
FAN SPEED/
MODE
QUIET
TEMP
SLEEP
AIR SWING
ON
SET
TIMER
OFF
CANCEL
AIR CONDITIONER
WARNING
IMPORTANT SAFETY NOTICE
CAUTION
Order No: PAPAMY2009038CE
Air Conditioner
Indoor Unit
© Panasonic Corporation 2020
Outdoor Unit
CU-RZ25WKR
CU-RZ35WKR
CU-RZ42WKR
CU-RZ50WKR
Destination
Australia
New Zealand
in the Schematic

Advertisement

Table of Contents
loading
Need help?

Need help?

Do you have a question about the CS-RZ35WKRW and is the answer not in the manual?

Questions and answers

Related Manuals for Panasonic CS-RZ35WKRW

Summary of Contents for Panasonic CS-RZ35WKRW

  • Page 1 – This Air Conditioner contains and operates with refrigerant R32. THIS PRODUCT MUST ONLY BE INSTALLED OR SERVICED BY QUALIFIED PERSONNEL. Refer to Commonwealth, State, Territory and local legislation, regulations, codes, installation & operation manuals, before the installation, maintenance and/or service of this product. © Panasonic Corporation 2020...

  • Page 2: Table Of Contents

    14.13 HA Terminal (HAJEM-A) ......101 14.14 Demand Control ........102 CS-RZ25WKRW CU-RZ25WKR 14.15 Pump down Operation by CN-S ....102 CS-RZ35WKRW CU-RZ35WKR ....35 CS-RZ42WKRW CU-RZ42WKR 15. Operation Control CS-RZ50WKRW CU-RZ50WKR ....36 (For Multi Split Connection) ......103 8.
  • Page 3 21. Service Data ............ 164 21.1 Cool Mode Outdoor Air Temperature Characteristic ........... 164 21.2 Heat Mode Outdoor Air Temperature Characteristic ........... 168 21.3 Piping Length Correction Factor ....172 22. Exploded View and Replacement Parts List ..............175 22.1 Indoor Unit ..........

  • Page 4: Safety Precautions

    1. Safety Precautions  Read the following “SAFETY PRECAUTIONS” carefully before perform any servicing.  Electrical work must be installed or serviced by a licensed electrician. Be sure to use the correct rating of the power plug and main circuit for the model installed. ...
  • Page 5 WARNING Do not use joint cable for indoor / outdoor connection cable. Use the specified indoor/outdoor connection cable, refer to instruction CONNECT THE CABLE TO THE INDOOR UNIT and connect tightly for indoor/outdoor connection. Clamp the cable so that no external force will have impact on the terminal. If connection or fixing is not perfect, it will cause heat up or fire at the connection.

  • Page 6: Precaution For Using R32 Refrigerant

    2. Precaution for Using R32 Refrigerant  The basic installation work procedures are the same as conventional refrigerant (R410A, R22) models. However, pay careful attention to the following points: WARNING The appliance shall be stored, installed and operated in a well ventilated room with indoor floor area larger than A ) [refer Table A] and without any continuously operating ignition source.
  • Page 7 CAUTION Installation (Space)  Must ensure the installation of pipe-work shall be kept to a minimum. Avoid use dented pipe and do not allow acute bending.  Must ensure that pipe-work shall be protected from physical damage.  Must comply with national gas regulations, state municipal rules and legislation. Notify relevant authorities in accordance with all applicable regulations.
  • Page 8 CAUTION 2-8. Checks to electrical devices  Repair and maintenance to electrical components shall include initial safety checks and component inspection procedures.  Initial safety checks shall include but not limit to:- That capacitors are discharged: this shall be done in a safe manner to avoid possibility of sparking. That there is no live electrical components and wiring are exposed while charging, recovering or purging the system.
  • Page 9 CAUTION Removal and evacuation  When breaking into the refrigerant circuit to make repairs – or for any other purpose – conventional procedures shall be used. However, it is important that best practice is followed since flammability is a consideration. The following procedure shall be adhered to: •...
  • Page 10 CAUTION Recovery  When removing refrigerant from a system, either for servicing or decommissioning, it is recommended good practice that all refrigerants are removed safely.  When transferring refrigerant into cylinders, ensure that only appropriate refrigerant recovery cylinders are employed. ...

  • Page 11: Specification

    3. Specification Model CS-RZ25WKRW Indoor POS (EAN) 5025232912121 Model CU-RZ25WKR Outdoor POS (EAN) 5025232913169 Performance Test Condition Phase, Hz Single, 50 Power Supply Min. Mid. Max. Min. Mid. Max. 0.95 2.50 3.00 0.95 2.50 3.00 Capacity BTU/h 3240 8530 10200 3240 8530 10200...
  • Page 12 Model CS-RZ25WKRW Indoor POS (EAN) 5025232912121 Model CU-RZ25WKR Outdoor POS (EAN) 5025232913169 0.90 3.00 / 2.50 3.60 0.90 3.00 / 2.50 3.60 Capacity at ( 7°C / 2°C) BTU/h 3070 10200 12300 3070 10200 12300 Kcal/h 2580 3100 2580 3100 Running Current 3.00 2.90...
  • Page 13 Model CS-RZ25WKRW Indoor POS (EAN) 5025232912121 Model CU-RZ25WKR Outdoor POS (EAN) 5025232913169 Type Cross-flow Fan Material ASG30 Motor Type DC (8-poles) Input Power 43.8 Output Power Cool Heat Cool Heat Cool Speed Heat Cool 1140 Heat 1230 Cool 1190 Heat 1280 Type Propeller...
  • Page 14 Model CS-RZ25WKRW Indoor POS (EAN) 5025232912121 Model CU-RZ25WKR Outdoor POS (EAN) 5025232913169 Height (ID mm (inch) 290 (11-7/16) / 542 (21-11/32) / OD) Width Unit mm (inch) 779 (30-11/16) / 780 (30-23/32) (ID / OD) Depth mm (inch) 209 (8-1/4) / 289 (11-13/32) (ID / OD) Dimension Height (ID...
  • Page 15 Model CS-RZ25WKRW Indoor POS (EAN) 5025232912121 Model CU-RZ25WKR Outdoor POS (EAN) 5025232913169 Dry Bulb Wet Bulb Maximum °C (°F) 32 (89.6) 23 (73.4) Cooling Minimum °C (°F) 16 (60.8) 11 (51.8) Indoor Operation Range Maximum °C (°F) 30 (86.0) Heating Minimum °C (°F) 16 (60.8) Maximum °C (°F)
  • Page 16 Model CS-RZ35WKRW Indoor POS (EAN) 5025232913138 Model CU-RZ35WKR Outdoor POS (EAN) 5025232913176 Performance Test Condition Phase, Hz Single, 50 Power Supply Min. Mid. Max. Min. Mid. Max. 1.00 3.50 3.90 1.00 3.50 3.90 Capacity BTU/h 3410 11900 13300 3410 11900...
  • Page 17 Model CS-RZ35WKRW Indoor POS (EAN) 5025232913138 Model CU-RZ35WKR Outdoor POS (EAN) 5025232913176 3.70 / 3.70 / 0.90 5.10 0.90 5.10 3.40 3.40 Capacity at ( 7°C / 2°C) BTU/h 3070 12600 17400 3070 12600 17400 Kcal/h 3180 4390 3180 4390 Running Current 3.80...
  • Page 18 Model CS-RZ35WKRW Indoor POS (EAN) 5025232913138 Model CU-RZ35WKR Outdoor POS (EAN) 5025232913176 Type Cross-flow Fan Material ASG30 Motor Type DC (8-poles) Input Power 43.8 Output Power Cool Heat Cool Heat Cool 1020 Speed Heat 1090 Cool 1280 Heat 1340 Cool...
  • Page 19 Model CS-RZ35WKRW Indoor POS (EAN) 5025232913138 Model CU-RZ35WKR Outdoor POS (EAN) 5025232913176 Net (I/D/ O/D) kg (lb) 8 (18) / 31 (68) Weight Gross (I/D / O/D) kg (lb) 9 (20) / 33 (73) Stacking No. (CS / CU / CZ)
  • Page 20 Model CS-RZ42WKRW Indoor POS (EAN) 5025232913145 Model CU-RZ42WKR Outdoor POS (EAN) 5025232913183 Performance Test Condition Phase, Hz Single, 50 Power Supply Min. Mid. Max. Min. Mid. Max. 1.15 4.20 5.00 1.15 4.20 5.00 Capacity BTU/h 3920 14300 17100 3920 14300 17100 kcal/h 3610...
  • Page 21 Model CS-RZ42WKRW Indoor POS (EAN) 5025232913145 Model CU-RZ42WKR Outdoor POS (EAN) 5025232913183 5.10 / 5.10 / 0.90 6.80 0.90 6.80 4.40 4.40 Capacity at ( 7°C / 2°C) BTU/h 3070 17400 23200 3070 17400 23200 Kcal/h 4390 5850 4390 5850 Running Current 6.10 5.90...
  • Page 22 Model CS-RZ42WKRW Indoor POS (EAN) 5025232913145 Model CU-RZ42WKR Outdoor POS (EAN) 5025232913183 Type Cross-flow Fan Material ASG30 Motor Type DC (8-Poles) Input Power 43.8 Output Power Cool Heat Cool Heat Cool 1080 Speed Heat 1150 Cool 1280 Heat 1340 Cool 1330 Heat 1400...
  • Page 23 Model CS-RZ42WKRW Indoor POS (EAN) 5025232913145 Model CU-RZ42WKR Outdoor POS (EAN) 5025232913183 Net (I/D / O/D) kg (lb) 8 (18) / 31 (68) Weight Gross (I/D / O/D) kg (lb) 9 (20) / 34 (75) Stacking No. (CS / CU / CZ) 12 / 6 / - Pipe Diameter (Liquid / Gas) mm (inch)
  • Page 24 Model CS-RZ50WKRW Indoor POS (EAN) 5025232913152 Model CU-RZ50WKR Outdoor POS (EAN) 5025232913190 Performance Test Condition Phase, Hz Single, 50 Power Supply Min. Mid. Max. Min. Mid. Max. 1.15 5.00 5.50 1.15 5.00 5.50 Capacity BTU/h 3920 17100 18800 3920 17100 18800 kcal/h 4300...
  • Page 25 Model CS-RZ50WKRW Indoor POS (EAN) 5025232913152 Model CU-RZ50WKR Outdoor POS (EAN) 5025232913190 5.80 / 5.80 / 0.98 7.50 0.98 7.50 5.40 5.40 Capacity at ( 7°C / 2°C) BTU/h 3340 19800 25600 3340 19800 25600 Kcal/h 4990 6450 4990 6450 Running Current 7.60 7.30...
  • Page 26 Model CS-RZ50WKRW Indoor POS (EAN) 5025232913152 Model CU-RZ50WKR Outdoor POS (EAN) 5025232913190 Type Cross-flow Fan Material ASG30 Motor Type DC (8-Poles) Input Power 43.8 Output Power Cool Heat Cool Heat Cool 1120 Speed Heat 1150 Cool 1280 Heat 1390 Cool 1330 Heat 1420...
  • Page 27 Model CS-RZ50WKRW Indoor POS (EAN) 5025232913152 Model CU-RZ50WKR Outdoor POS (EAN) 5025232913190 Net (I/D O/D) kg (lb) 8 (18) / 36 (79) Weight Gross (I/D O/D) kg (lb) 9 (20) / 39 (86) Stacking No. (CS / CU / CZ) 12 / 6 / - Pipe Diameter (Liquid / Gas) mm (inch)
  • Page 28 Example: The indoor units’ combination below is possible to connect to CU-3Z54VBR. (Total nominal capacity of indoor units is between 4.5kW to 9.5kW) 1) Two CS-RZ35WKRW only. (Total nominal cooling capacity is 7.0kW) Remarks for CU-4Z71VBR 1. At least two indoor units must be connected.
  • Page 29 ● ● ● ● ● 2.0kW CS-MRZ20WKR CS-RZ25WKRW ● ● ● ● ● ● ● ● ● 2.5kW CS-Z25UD3RAW CS-Z25UB4RAW CS-RZ35WKRW ● ● ● ● ● ● ● ● ● CS-Z35UD3RAW 3.5kW CS-Z35UB4RAW ● ● ● ● ● ● ●...

  • Page 30: Features

    4. Features  Inverter Technology Wider output power range Energy saving Quick Cooling Quick Heating More precise temperature control  Environment Protection Non-ozone depletion substances refrigerant (R32)  Long Installation Piping Long piping up to 20 meters (RZ25/35/42WK) and 30 meters (RZ50WK) during single split connection only ...

  • Page 31: Location Of Controls And Components

    5. Location of Controls and Components Indoor Unit Aluminium fin Anti-bacterial filter Front panel Auto OFF/ON button Use when remote control is misplaced Horizontal airflow or a malfunction occurs. direction louver Manually adjustable. Indicator POWER Vertical airflow TIMER Sunlight Sensor direction louver and Remote Do not adjust...

  • Page 32: Dimensions

    6. Dimensions Indoor Unit <Top View> <Side View> <Front View> <Side View> Air intake direction Air outlet Left piping direction Right piping hole <Bottom View> hole <Remote Control> OFF/ON OFF/ON POWERFUL/ FAN SPEED/ MODE QUIET <Rear View> TEMP SLEEP AIR SWING TIMER CANCEL DRAIN HOSE...

  • Page 33: Outdoor Unit

    Outdoor Unit 6.2.1 CU-RZ25WKR CU-RZ35WKR <Top View> Space necessary for installation 67.6 104.7 104.9 60.5 100 mm 100 mm 1000 mm Anchor Bolt Pitch 320 x 570 2-way valve at Liquid side <Side View> (High Pressure) <Side View> <Front View> 3-way valve at Gas side (Low Pressure)
  • Page 34 6.2.2 CU-RZ42WKR CU-RZ50WKR <Top View> Space necessary for 68.7 installation (124) (62.6) 100 mm 100 mm 1000 mm Anchor Bolt Pitch 320 x 570 2-way valve at <Side View> Liquid side <Side View> <Front View> (High Pressure) 3-way valve at Gas side (Low Pressure) <Chassis>...

  • Page 35: Refrigeration Cycle Diagram

    7. Refrigeration Cycle Diagram CS-RZ25WKRW CU-RZ25WKR CS-RZ35WKRW CU-RZ35WKR DISCHARGE LIQUID MUFFLER EXPANSION SIDE (RZ35WKR only) VALVE STRAINER 2-WAY VALVE PIPE TEMP. PIPE SENSOR TEMP. INTAKE SENSOR 2 TEMP. SENSOR INTAKE PIPE TEMP. TEMP. SENSOR SENSOR 1 HEAT EXCHANGER (CONDENSER) HEAT EXCHANGER...

  • Page 36: Cs-Rz42Wkrw Cu-Rz42Wkr Cs-Rz50Wkrw Cu-Rz50Wkr

    CS-RZ42WKRW CU-RZ42WKR CS-RZ50WKRW CU-RZ50WKR INDOOR OUTDOOR LIQUID EXPANSION SIDE VALVE STRAINER PIPE TEMP. 2-WAY DISCHARGE SENSOR VALVE MUFFLER PIPE TEMP. SENSOR 1 INTAKE TEMP. TEMP. SENSOR SENSOR PIPE TEMP. SENSOR 2 (FOR Z80VK ONLY) HEAT EXCHANGER HEAT EXCHANGER (EVAPORATOR) (CONDENSER) SIDE 4-WAY VALVE 3-WAY...

  • Page 37: Block Diagram

    8. Block Diagram CS-RZ25WKRW CU-RZ25WKR CS-RZ42WKRW CU-RZ42WKR...

  • Page 38: Cs-Rz35Wkrw Cu-Rz35Wkr

    CS-RZ35WKRW CU-RZ35WKR...

  • Page 39: Cs-Rz50Wkrw Cu-Rz50Wkr

    CS-RZ50WKRW CU-RZ50WKR...

  • Page 40: Wiring Connection Diagram

    9. Wiring Connection Diagram Indoor Unit REMARKS : BL/BLK : BLACK FUSE301 TERMINAL T3.15A L250V : BLUE AC306 (BLK) HAJEM-A BOARD (WHT) : BROWN G/GRN : GREEN AC303 (WHT) : ORANGE TEMP. FUSE 102°C AC304 (RED) OUTDOOR : PINK NOISE UNIT CN-CNT : RED...

  • Page 41: Outdoor Unit

    Outdoor Unit 9.2.1 CU-RZ25WKR CU-RZ42WKR REMARKS YELLOW BLU : BLUE (YEL) OR T(W) BLK : BLACK SINGLE PHASE POWER SUPPLY TO INDOOR UNIT BLUE WHT : WHITE (BLU) (RED) RED : RED OR S(V) OR R(U) YLW : YELLOW (TRADEMARK) GRY : GRAY TERMINAL COMPRESSOR TERMINAL...
  • Page 42 9.2.2 CU-RZ35WKR YELLOW (YEL) OR T(W) REMARKS BLU : BLUE BLK : BLACK SINGLE PHASE POWER SUPPLY TO INDOOR UNIT WHT : WHITE RED : RED BLUE YLW : YELLOW (RED) (BLU) GRY : GRAY OR R(U) OR S(V) GRN : GREEN TERMINAL TRADEMARK PNK : PINK...
  • Page 43 9.2.3 CU-RZ50WKR YELLOW (YEL) OR T(W) REMARKS SINGLE PHASE BLU : BLUE POWER SUPPLY BLK : BLACK TO INDOOR UNIT WHT : WHITE RED : RED BLUE YLW : YELLOW (RED) (BLU) GRY : GRAY OR R(U) OR S(V) GRN : GREEN TERMINAL TRADEMARK PNK : PINK...

  • Page 44: Electronic Circuit Diagram

    10. Electronic Circuit Diagram 10.1 Indoor Unit FUSE301 TERMINAL T3.15A L250V AC306 (BLK) BOARD 0.01u AC303 (WHT) TEMP. FUSE 102°C AC304 (RED) OUTDOOR UNIT NOISE G301 (GRN) FILTER 0.01u CIRCUIT HAJEM-A (WHT) EVAPORATOR 12V_1 COMMUNICATION (SW01) CIRCUIT *F301 *JR3 1000p 1000p *C56 *C57...

  • Page 45: Outdoor Unit

    10.2 Outdoor Unit 10.2.1 CU-RZ25WKR CU-RZ42WKR SINGLE PHASE POWER SUPPLY TO INDOOR UNIT TERMINAL REACTOR BOARD RAT2 RAT1 (GRY) (GRY) FUSE105 (15A 250V) DATA R205 R206 (RED) 15.8k OUTDOOR AIR TEMP. SENSOR (THERMISTOR) AC-BLK NOISE FILTER CIRCUIT (BLK) VJP15 COMMUNICATION t°...
  • Page 46 10.2.2 CU-RZ35WKR SINGLE PHASE POWER SUPPLY TO INDOOR UNIT TERMINAL REACTOR BOARD RAT2 RAT1 DATA (GRY) (GRY) (RED) COMMUNICATION CIRCUIT FUSE 2 FUSE 3 (20A 250V) (20A 250V) 15.8k FUSE 103 AC-BLK *R468 (20A 250V) (BLK) PFC CIRCUIT NOISE FILTER 220u CIRCUIT AC-WHT...
  • Page 47 10.2.3 CU-RZ50WKR SINGLE PHASE REACTOR POWER SUPPLY TO INDOOR UNIT RAT1 RAT2 (GRY) (GRY) TERMINAL BOARD 15.8k DATA 220u (RED) FUSE 2 FUSE 3 COMMUNICATION CIRCUIT PFC CIRCUIT FUSE 103 AC-BLK (25A 250V) (BLK) OUTDOOR AIR TEMP. SENSOR (THERMISTOR) NOISE FILTER t°...

  • Page 48: Printed Circuit Board

    11. Printed Circuit Board 11.1 Indoor Unit 11.1.1 Main Printed Circuit Board AC304 AC303 G301 AC306 CN-FM HAJEM-A CN-CNT CN-RMT CN-TH CN-STM1 JP1 (Random Auto Restart Enable/Disable) CN-DISP...
  • Page 49 11.1.2 Indicator and Receiver Printed Circuit Board LED204 LED202 LED203 LED201 CN-DISP...

  • Page 50: Outdoor Unit

    11.2 Outdoor Unit 11.2.1 Main Printed Circuit Board 11.2.1.1 CU-RZ25WKR CU-RZ42WKR POWER TRANSISTOR (IPM) RAT2 RAT1 CN-V1 CN-MTR1 CN-TH CN-HOT CN-TANK CN-DEMAND CN-STM DATA AC-BLK AC-WHT...
  • Page 51 11.2.2 CU-RZ35WKR POWER TRANSISTOR (IPM) RAT1 CN-MTR2 RAT2 CN-MTR1 CN-TH1 CN-DEMAND CN-TANK CN-STM CN-HOT AC-WHT DATA CN-V1 AC-BLK...
  • Page 52 11.2.2.1 CU-RZ50WKR POWER TRANSISTOR (IPM) CN-MTR2 CN-MTR1 CN-TH1 CN-DEMAND CN-TANK CN-HOT CN-STM AC-WHT DATA CURRENT TRANSFORMER AC-BLK (CT) CN-V1...
  • Page 53 11.2.3 Demand Control Printed Circuit Board CN-DEMAND CN-OPT CN-PWR AC_GND...

  • Page 54: Installation Instruction

    12. Installation Instruction 12.1 Select the Best Location 12.1.2 Indoor Unit Installation Diagram 12.1.1 Indoor Unit Piping direction Attention not to bend (Front side) up drain hose  Right Do not install the unit in excessive oil fume area Right Rear such as kitchen, workshop and etc.

  • Page 55: Indoor Unit

    12.2 Indoor Unit 12.2.1 How to Fix Installation Plate The mounting wall shall be strong and solid enough to prevent it from vibration. Ceiling Wall More than More than Wall More screw Indoor unit than 216 mm 168 mm Measuring Tape Installation plate PIPE PIPE...
  • Page 56 12.2.3 Indoor Unit Installation Pull out the Indoor piping ● Do not turn over the unit without shock absorber during pull out the piping. It may cause intake grille damage. ● Use shock absorber during pull out the piping to protect the intake grille from damage. Piping Piping Shock absorber...
  • Page 57 Change the drain hose position Rear view for left piping installation PIPE HOLE CENTER Connection cable 115mm TO HOLE CENTER Piping More than 950 mm Drain hose Connection cable Drain hose Drain cap Sleeve for piping hole Adjust the piping slightly Drain hose downwards.
  • Page 58 Secure firmly the connection cable onto the control board with the holder. Do not overtighten holder screw, as this may damage the holder. Tape Connection cable Terminal Board Earth Wire longer than others AC wires for safety reason Recommended Recommended length (mm) length (mm) Holder...
  • Page 59 12.2.5 Connect the Piping 12.2.5.1 Connecting the Piping to Indoor For connection joint of all models Additional Precautions For R32 Models when Please make flare after inserting flare nut (locate at connecting by flaring at indoor side joint portion of tube assembly) onto the copper pipe. Ensure to do re-flaring of pipes before connecting to units (In case of using long piping) to avoid leaking...
  • Page 60 12.2.5.3 Connecting the Piping to Outdoor Multi Decide piping length and then cut by using pipe cutter. Liquid side Remove burrs from cut edge. Make flare after inserting the Hall Union Flare Nut flare nut (locate at valve) onto the copper pipe. Align center Auxiliary pipe Connection pipe (male side)
  • Page 61 12.2.9 Evaluation of the Performance  Operate the unit at cooling/heating operation mode for fifteen minutes or more.  Measure the temperature of the intake and discharge air.  Ensure the difference between the intake temperature and the discharge is more than 8°C during Cooling operation or more than 14°C Discharge air during Heating operation.

  • Page 62: Select The Best Location

    12.3 Select the Best Location 12.3.1 Outdoor Unit  If an awning is built over the unit to prevent direct Power supply cable ( ) sunlight or rain, be careful that heat radiation from Connection cable ( ) the condenser is not obstructed. ...

  • Page 63: Outdoor Unit

    12.4 Outdoor Unit 12.4.1 Install the Outdoor Unit  After selecting the best location, start installation to Indoor/Outdoor Unit Installation Diagram. Fix the unit on concrete or rigid frame firmly and horizontally by bolt nut (ø10 mm). Make sure unit install in balance level to ensure that water flow out from unit drainage hole. When installing at roof, please consider strong wind and earthquake.
  • Page 64 AIR PURGING METHOD IS PROHIBITED FOR R32 SYSTEM 12.4.3 Air Tightness Test on the Refrigerating System Do not purge the air with refrigerants but use a vacuum pump to vacuum the installation. There is no extra refrigerant in the outdoor unit for air purging. ...
  • Page 65 12.4.4 Connect the Cable to the Outdoor Unit Remove the control board cover from the unit Demand control signal transmission cable by loosening the screw. between outdoor unit and DRED (Demand Cable connection to the power supply through response enabling devices) shall be double Isolating Devices (Disconnecting means).
  • Page 66 12.4.6 Disposal of Outdoor Unit Drain Water  If a drain elbow is used, the unit should be placed on a stand which is taller than 3 cm.  If the unit is used in an area where temperature falls below 0°C for 2 or 3 days in succession, it is recommended not to use a drain elbow, for the drain water freezes and the fan will not rotate.

  • Page 67: Wired Remote Controller Installation Manual

    12.5 Wired Remote Controller Installation Manual 12.5.1 Safety Precautions  Read the following “SAFETY PRECAUTIONS” carefully before installation.  Electrical work must be installed by a licensed electrician.  The caution items stated here must be followed because these important contents are related to safety. The meaning of each indication used is as below.
  • Page 68 12.5.2 Attached Accessories Name Diagram Remark Remote controller Remote controller cable Length (9.9 m) Screw Installing the remote controller to an outlet box (M4 machine pitched – 30 mm) (embedded cable) Screw Installing the remote controller to the wall (M4 self tapping – 14 mm) (exposed cable) Remote controller cable holder Holder for remote controller cable at control board...
  • Page 69 Embed an outlet box (JIS C 8336) into the wall. Outlet box may be purchased separately. Medium-sized square outlet box (obtain locally) Part No. DS3744 (Panasonic Co., Ltd.) or equivalent. Secure the remote controller lower case to the outlet box with the two accessory screws 3. Make sure that the lower case is flat against the wall at this time, with no bending.
  • Page 70 B. If Remote Controller Cable is Exposed Install the remote controller lower case to the wall with the two accessory screws 4. Fasten the screws properly until screw head is lower than the rib and reach the base of remote controller lower case to ensure they do not damage the PCB inside the remote controller 1.
  • Page 71 12.5.5 Connecting the Remote Controller Cable to Indoor Unit CAUTION Be sure to turn off the main power before installing and connecting the remote controller. Otherwise, it will cause the electrical shock. Open front grille complete Install back terminal board cover complete. Be (Please refer HOW TO TAKE OUT FRONT careful not to clamp the cable between GRILLE).

  • Page 72: Installation And Servicing Air Conditioner Using R32

    13. Installation and Servicing Air Conditioner using R32 13.1 About R32 Refrigerant For air conditioning refrigerants such as R410A, the refrigerants were collected back in order to prevent their air dissipation, to curbe the global warming impact, in case they were released into the atmosphere. In the “4th Environmental Basic Plan”, 80% reduction of greenhouse gas emissions by 2050 is required, and due to this requirement, further reduction in the emission of high greenhouse effect gas, such as CFCs, is required.
  • Page 73 2. Characteristic of Pressure As shown in Table 2, R32 does not have much difference in vapor pressure at the same refrigerant temperature comparing to R410A, but comparing to R22, it is higher at 1.6 times more. Thus, the same as in case of R410A, it is necessary to do installation and service using high-pressure tools and components.

  • Page 74: Refrigerant Piping Installation • Tools Used In Services

    13.3 Refrigerant piping installation • Tools used in services 13.3.1 Required Tools R32 refrigerant air conditioners use the common parts as R410A air conditioners for two-way valves and three-way valves (diameters of service ports); thus, they maintain commonality in the maintenance of the compressive strength, the size of pipe flaring, and the size of flare nuts as R410A.
  • Page 75 3. Torque wrenches (diameters 1/2, 5/8) Manifold gauges / Charging hoses In order to strengthen the compressive strength, the diameters of wrenches change depending on the flare nut sizes. Torque wrenches Differences in charging hoses Differences in torque wrenches (common R410A) Normal 5.1 MPa 3.4 MPa...
  • Page 76 7. HFC refrigerant_Electric gas leakage tester 9. Refrigerant cylinders R32 refrigerant is often used for other mixed Refrigerant cylinders for R410A are painted in pink, refrigerant (R410A, R404A, R407C etc.). Therefore, and the ones for R32 are painted in other colors that the usage of existing HFC detectors is possible, but in might subject to change according to the international order to detect more accurately, we recommend to...
  • Page 77 11. Tools used for refrigerant piping installations and services Tools for R410A Common with R32 Possibility of usage for R22 ○ ○ Pipe cutters, reamers or scrapers ○ ○ Flare tools (clutch type) ○ ○ Torque wrench (1/4, 3/8) ○ ×...

  • Page 78: New Installation, Relocation, Repairing Of Refrigerant Cycle System The Procedures

    13.4 New installation, Relocation, Repairing of Refrigerant Cycle System The Procedures Relocation Repairing refrigerant cycle Installation Indoor / outdoor units and piping Pump down Refrigerant recovery • Displacing pipes and wires, and displacing indoor / outdoor units Prevention of impurity •...

  • Page 79: Piping Installation Of R32

    13.5 Piping installation of R32 13.5.1 Pipe materials used and flaring Copper pipes are used for refrigerant piping. Pipes Pipe thickness which comply with JIS Regulations need to be used. Room air conditioners which use R410A and R32 O and OL materials Thickness (mm) have higher pressure;...

  • Page 80: Installation, Relocation, And Service

    13.6 Installation, Relocation, and Service 13.6.1 Air purge and gas leak test for new installation (using new refrigerant pipes) using vacuum pump (From the point of view of global environment protection, do not release CFCs into the atmosphere during installation work) 1.
  • Page 81 13.6.2 Process of refrigerant recovery 1. Connect the center charging hose of manifold gauge to the in-let side of recovery device. 2. Connect the valves of the discharge side of recovery device and liquid side of refrigerant cylinder with red hose (charging hose).
  • Page 82 13.6.3 Relocation 1. Removing the air conditioning unit a) Recovery of outdoor unit refrigerant by pumping down Press “forced cooling button” (as a general rule, since 1998 the name of cooling testing button is changed, and this name is unified within the air conditioning industry), and then you are able to start cooling operation in which the room temperature is low, and you can recover the refrigerant from the outdoor unit.
  • Page 83 13.6.6 Re-insertion of refrigerant in service When re-insertion is needed, follow the procedures to ensure the insertion of new refrigerant at correct amount. 1. Attach charging hose (blue) to the service port of the outdoor unit. 2. Attach charging hose (red) to the vacuum pump. Fully open the 2-way and 3-way valves. 3.

  • Page 84: Repairing Of Refrigerant Cycle / Brazing Point

    13.7 Repairing of refrigerant cycle / Brazing point 13.7.1 Preparation for repairing of refrigerant cycle / brazing Brazing which is a technique needed for repairing refrigerant cycle requires advanced technique and experience, and this brazing procedure can only be performed by the workers who completed “Gas Welding Skill Training” regulated by the Occupational Safety and Health Act, and went through the training programs of refrigerant operations.
  • Page 85 2. Cylinder without adjustment valve side gauge pressure is adjusted by the adjuster. Check the both side valves of the torch and open the cylinder valve to check the remaining refrigerant in the cylinder. Caution: Do not attach oil component on the connection port of the adjuster. Especially, use an oxygen cylinder adjuster which is no oil substance type.
  • Page 86 13.7.5 Types of flame Types of flame change based on the proportion of propane and oxygen. [Neutral Flame] Perform brazing with this flame (This is a flame when oxygen and propane are mixed at proper proportion, and has lesser effect on the brazed metals) White core flame 10 ~ 15 mm...
  • Page 87 13.7.7 Selection of brazing material Use BAg brazing material (silver solder) to increase the welding performance. Tensile strength Composition of ingredients (%) Temperature (°C) Characteristics (Reference) Category Standard Brazing Base Number applications Solidus Liquidus Kgf•cm temp material Liquidity is good at low temperature, 49.0 14.5...
  • Page 88 13.7.10 Checking of brazing (insert) points 1. No impurity on the brazing point Gap 0.025 ~ 0.05 mm If dirt or oil is attached on the brazing point, the Inner diameter ø6.45 brazing filler metal does not reach to junction, and it may cause poor welding.
  • Page 89 Melting temperature of copper • • • • • • • Approx. 1083°C Maximum temperature obtained in propane and oxygen • • • • • • • Approx. 1083°C The important point is to heat the bonding part uniformly within a short period of time until reaching to the brazing temperature in the following manner.

  • Page 90: Reference> Analysis Method For No Error Code, No Cooling / No Warming

    13.8 <Reference> Analysis method for no error code, no cooling / no warming 13.8.1 Preparation for appropriate diagnosis In order to obtain appropriate operation characteristics, minimum 15 minutes or more operation time [testing operation (rated operation)] is required. 1. Method of rated operation (rated operation) For the models which have two buttons of “emergency operation and forced cooling operation”, press forced cooling button once.
  • Page 91 1. Measuring temperature 1) Indoor unit suction temperature, release temperature, temperature difference, → Measure by thermometer 2) 2-way valve pipe temperature in cooling mode is low temperature (benchmark：5 ~ 10°C), in heating mode is medium temperature (benchmark：25 ~ 35°C). 3) 3-way valve pipe temperature in cooling mode is low temperature (benchmark：7 ~ 15°C) in heating mode is high temperature (benchmark：38 ~ 50°C).

  • Page 92: Operation And Control

    14. Operation and Control 14.1 Basic Function Inverter control, which equipped with a microcomputer in determining the most suitable operating mode as time passes, automatically adjusts output power for maximum comfort always. In order to achieve the suitable operating mode, the microcomputer maintains the set temperature by measuring the temperature of the environment and performing temperature shifting.
  • Page 93 14.1.5 Automatic Operation  This mode can be set using remote control and the operation is decided by remote control setting temperature, remote control operation mode and indoor intake air temperature.  During operation mode judgment, indoor fan motor (with speed of Lo-) is running for 30 seconds to detect the indoor intake air temperature.

  • Page 94: Indoor Fan Motor Operation

    14.2 Indoor Fan Motor Operation 14.2.1 Basic Rotation Speed (rpm) A. Basic Rotation Speed (rpm) i. Manual Fan Speed [Cooling, Dry, Fan]  Fan motor’s number of rotation is determined according to remote control setting. ○ ○ ○ ○ ○ Remote control [Heating] ...

  • Page 95: Outdoor Fan Motor Operation

    14.3 Outdoor Fan Motor Operation Outdoor fan motor is operated with one fan speed only. It starts when compressor starts operation and it stops 30 seconds after compressor stops operation. Compressor: Fan Speed Outdoor Fan: 30 sec 14.4 Airflow Direction ...
  • Page 96 Side View (Inner Vane) Closed Position Stopper 110º Reference point Step 1 Step 2 Step 3 Step 4 Step 5 Side View (Outer Vane) Closed Position Stopper 115º Reference point Step 1 Step 2 Step 3 Step 4 Step 5 Figure 2 * The horizontal vane angle tolerance is within +/- 5 degree.

  • Page 97: Timer Control

    14.5 Timer Control  There are 2 sets of ON and OFF timer available to turn the unit ON or OFF at different preset time.  If more than one timer had been set, the upcoming timer will be displayed and will activate in sequence. 14.5.1 ON Timer Control ...

  • Page 98: Quiet Operation (Cooling Mode/Cooling Area Of Dry Mode)

    14.8 Quiet Operation (Cooling Mode/Cooling Area of Dry Mode) A. Purpose To provide quiet cooling operation compare to normal operation. B. Control condition a. Quiet operation start condition When “FAN SPEED/QUIET” button at remote control is pressed continuously until QUIET will be shown on remote control display.

  • Page 99: Eco Operation

    14.11 ECO Operation Purpose  This operation is use to reduce electrical power consumption by combining both temperature shifting and current limitation. Control Condition  ECO operation start condition When POWERFUL/ECO button at remote control is pressed 2 times until ECO will be shown on remote control display and LED indicator light is ON.

  • Page 100: Sleep Mode Operation

    14.12 Sleep Mode Operation This operation provide comfortable environment while sleeping. It will automatically adjust the sleep pattern temperature during the activation period. SLEEP (Cancel) This operation is incorporated with the activation timer (0.5, 1, 2, 3, 4, 5, 6, 7, 8 or 9 hours). Start Condition: ...

  • Page 101: Ha Terminal (Hajem-A)

    Heating mode i t c Set Temp -1°C 1 Hr Max 9 Hrs  Sleep operation will not undergo temperature shift when it collaborate with below operation. However, it will execute the delay timer. Powerful mode operation Auto mode operation Stop Condition: ...

  • Page 102: Demand Control

    14.14 Demand Control  When the air-conditioner connected to Demand Response Enabling Devices (DRED), the power consumption especially during peak hours could be controlled. Relay 1 DRM1 Relay 2 DRM2 Relay 3 DRM3 DRED AIR-CONDITIONER  Three Demand response modes (DRM) are available DRM1 = Compressor cut off DRM2 = Operate at 50% of rated input power DRM3 = Operate at 75% of rated input power...

  • Page 103: Operation Control (For Multi Split Connection)

    15. Operation Control (For Multi Split Connection) During multi split connection, indoor unit’s operation controls are same with single split connection unless specified in this chapter. 15.1 Cooling Operation 15.1.1 Thermostat Control  Capability supply to indoor unit is OFF (Expansion valve closed) when Intake Air Temperature — Internal setting temperature <...

  • Page 104: Automatic Operation

    15.4 Automatic Operation  This mode can be set using remote control and the operation is decided by remote control setting temperature, remote control operation mode, indoor intake and outdoor air temperature.  During operation mode judgment, indoor fan motor (with speed of -Lo) and outdoor fan motor are running for 30 seconds to detect the indoor intake and outdoor air temperature.

  • Page 105: Protection Control

    16. Protection Control 16.1 Protection Control for All Operations 16.1.1 Restart Control (Time Delay Safety Control)  The Compressor will not turn on within 3 minutes from the moment operation stops, although the unit is turned on again by pressing OFF/ON button at remote control within this period. ...
  • Page 106 16.1.4 Compressor Overheating Prevention Control  Instructed frequency for compressor operation will be regulated by compressor discharge temperature. The changes of frequency are as below.  If compressor discharge temperature exceeds 103°C, compressor will be stopped, occurs 4 times per 20 minutes, timer LED will be blinking.

  • Page 107: Protection Control For Cooling & Soft Dry Operation

    16.2 Protection Control for Cooling & Soft Dry Operation 16.2.1 Outdoor Air Temperature Control  The compressor operating frequency is regulated in accordance to the outdoor air temperature as shown in the diagram below.  This control will begin 1 minute after the compressor starts. ...

  • Page 108: Protection Control For Heating Operation

    16.2.6 Odor Cut Control  To reduce the odor released from the unit. Start Condition  AUTO FAN Speed is selected during COOL or DRY operation.  During freeze prevention control and timer preliminary operation, this control is not applicable. Control content ...
  • Page 109 16.3.3 Overload Protection Control  The compressor operating frequency is regulated in accordance to indoor heat exchanger temperature as shown below.  If the heat exchanger temperature exceeds 60°C, compressor will stop. 60°C Frequency Reduce 55°C 52°C Frequency Limited 49°C 46°C Free Indoor Heat...

  • Page 110: Servicing Mode

    17. Servicing Mode 17.1 Auto OFF/ON Button AUTO OPERATION MODE The Auto operation will be activated immediately once the Auto OFF/ON button is pressed. This operation can be used to operate air conditioner with limited function if remote control is misplaced or malfunction. TEST RUN OPERATION (FOR PUMP DOWN/SERVICING PURPOSE) The Test Run operation will be activated if the Auto OFF/ON button is pressed continuously for more than 5 seconds.

  • Page 111: Heat Only Operation

    REMOTE CONTROL RECEIVING SOUND OFF/ON MODE The Remote Control Receiving Sound OFF/ON Mode will be activated if the Auto OFF/ON button is pressed continuously for more than 16 seconds (4 “beep” sounds will occur at 16th seconds to identify the Remote Control Receiving Sound Off/On Mode is in standby condition) and press “AC Reset”...
  • Page 112 17.3.2 Operation mode during Cooling Only and Heating Only Operation  The table below shows the operation mode comparison when Heating Only Operation Mode Activated and Deactivated. Operation mode Cooling Only Operation Mode Activated Heating Only Operation Mode Activated Normal Operation Mode After 30s sampling, the unit will judge After 30s sampling, regardless of indoor After 30s sampling, regardless of indoor...

  • Page 113: Remote Control Button

    17.4 Remote Control Button 17.4.1 SET Button  To check remote control transmission code and store the transmission code to EEPROM. Press “Set” button by using pointer. Press “Timer Set” button until a “beep” sound is heard as confirmation of transmission code change. LCD returns to original display if remote control does not operate for 30 seconds.
  • Page 114  To limit set temperature range for COOL & DRY, HEAT, AUTO mode. Press “Set” button by using pointer. Press TEMP increment or decrement button to choose No. 3. Press Timer increment or decrement button to select desired temperature low limit of set temperature for COOL &...
  • Page 115 Press TEMP increment or decrement button to choose No. 5. Press Timer increment or decrement button to select desired temperature low limit of set temperature for HEAT mode. Normal display mode Press SW to enter customer zone & Press SW’s to choose function 5 i) Display latest set temp (Low1).
  • Page 116 Press TEMP increment or decrement button to choose No. 12. Press Timer increment or decrement button to select desired temperature low limit of set temperature for AUTO mode. Normal display mode Press SW to enter customer zone & Press SW’s to choose function 12 i) Display latest set temp (Low3).
  • Page 117 17.4.2 RESET (RC)  To clear and restore the remote control setting to factory default. Press once to clear the memory. 17.4.3 RESET (AC)  To restore the unit’s setting to factory default. Press once to restore the unit’s setting. TIMER ▲...
  • Page 118 17.4.6 Customization mode LCD display area: Customization display area (highlighted in color) OFF/ON OFF/ON POWERFUL/ FAN SPEED/ MODE QUIET TEMP SLEEP AIR SWING TIMER CANCEL Function AIR CONDITIONER Options (If any) Cannot enter this customization mode under the following conditions: 1 Operation ON.
  • Page 119 Customization list table: Note: The functions described in the table may not be applicable to the model and may subject to change without further notice. Customization Options Remark Name Remote control number selection A, B, C, D Solar radiation sensitivity level adjustment 1, 2, 3, 4, 5 [iAUTO-X/iAUTO/iCOMF, Cool &...

  • Page 120: Troubleshooting Guide

    18. Troubleshooting Guide 18.1 Refrigeration Cycle System In order to diagnose malfunctions, make sure that there are no Normal Pressure and Outlet Air Temperature (Standard) electrical problems before inspecting the refrigeration cycle. Gas pressure Outlet air temperature Such problems include insufficient insulation, problem with the (kg/cm (°C) power source, malfunction of a compressor and a fan.
  • Page 121 18.1.1 Relationship Between the Condition of the Air Conditioner and Pressure and Electric Current Cooling Mode Heating Mode Condition of the Electric current Electric current air conditioner Low Pressure High Pressure Low Pressure High Pressure during operation during operation Insufficient refrigerant ...

  • Page 122: Breakdown Self Diagnosis Function

    18.2 Breakdown Self Diagnosis Function 18.2.1 Self Diagnosis Function (Three Digits Alphanumeric Code)  Every press of the button (up or down) will Once abnormality has occurred during operation, increase abnormality numbers and transmit the unit will stop its operation, and Timer LED abnormality code signal to the main unit.

  • Page 123: Error Code Table

    18.3 Error Code Table Diagnosis Abnormality / Abnormality Protection Problem Check location display Protection control Judgment Operation No memory of failure — Normal operation — — Indoor fan only  Indoor/outdoor wire terminal Indoor/outdoor operation can Indoor/outdoor After operation for ...
  • Page 124 Diagnosis Abnormality / Abnormality Protection Problem Check location display Protection control Judgment Operation  Check indoor/outdoor Wrong wiring and connection wire and connection Abnormal wiring or — — connecting pipe, expansion pipe piping connection  Expansion valve and lead wire valve abnormality and connector ...

  • Page 125: Self-Diagnosis Method

    18.4 Self-diagnosis Method 18.4.1 H11 (Indoor/Outdoor Abnormal Communication) Malfunction Decision Conditions  During startup and operation of cooling and heating, the data received from outdoor unit in indoor unit signal transmission is checked whether it is normal. Malfunction Caused  Faulty indoor unit PCB.
  • Page 126 18.4.2 H12 (Indoor/Outdoor Capacity Rank Mismatched) Malfunction Decision Conditions  During startup, error code appears when different types of indoor and outdoor units are interconnected. Malfunction Caused  Wrong models interconnected.  Wrong indoor unit or outdoor unit PCBs mounted. ...
  • Page 127 18.4.3 H14 (Indoor Intake Air Temperature Sensor Abnormality) Malfunction Decision Conditions  During startup and operation of cooling and heating, the temperatures detected by the indoor intake air temperature sensor are used to determine sensor errors. Malfunction Caused  Faulty connector connection. ...
  • Page 128 18.4.4 H15 (Compressor Temperature Sensor Abnormality) Malfunction Decision Conditions  During startup and operation of cooling and heating, the temperatures detected by the outdoor compressor temperature sensor are used to determine sensor errors. Malfunction Caused  Faulty connector connection.  Faulty sensor.
  • Page 129 18.4.5 H16 (Outdoor Current Transformer) Malfunction Decision Conditions  An input current, detected by Current Transformer CT, is below threshold value when the compressor is operating at certain frequency value for 3 minutes. Malfunction Caused  Lack of gas.  Broken CT (current transformer).
  • Page 130 18.4.6 H19 (Indoor Fan Motor – DC Motor Mechanism Locked) Malfunction Decision Conditions  The rotation speed detected by the Hall IC during fan motor operation is used to determine abnormal fan motor (feedback of rotation > 2550 rpm or < 50 rpm). Malfunction Caused ...
  • Page 131 18.4.7 H23 (Indoor Pipe Temperature Sensor 1 Abnormality) Malfunction Decision Conditions  During startup and operation of cooling and heating, the temperatures detected by the indoor heat exchanger temperature sensor 1 are used to determine sensor errors. Malfunction Caused  Faulty connector connection.
  • Page 132 18.4.8 H24 (Indoor Pipe Temperature Sensor 2 Abnormality) Malfunction Decision Conditions  During startup and operation of cooling and heating, the temperatures detected by the indoor heat exchanger temperature sensor 2 are used to determine sensor errors. Malfunction Caused  Faulty connector connection.
  • Page 133 18.4.9 H25 (nanoe-G Air Purifying System Abnormal) Malfunction Decision Conditions  During standby of cooling and heating operation, nanoe-G breakdown occurs and air conditioner stops operation. Malfunction Caused  Faulty indoor main PCB.  Faulty indoor nanoe-G power module. Troubleshooting When abnormality indication starts again For safety reason and to prevent component breakdown, always switch off the power...
  • Page 134 18.4.10 H27 (Outdoor Air Temperature Sensor Abnormality) Malfunction Decision Conditions  During startup and operation of cooling and heating, the temperatures detected by the outdoor air temperature sensor are used to determine sensor errors. Malfunction Caused  Faulty connector connection. ...
  • Page 135 18.4.11 H28 (Outdoor Pipe Temperature Sensor Abnormality) Malfunction Decision Conditions  During startup and operation of cooling and heating, the temperatures detected by the outdoor pipe temperature sensor are used to determine sensor errors. Malfunction Caused  Faulty connector connection. ...
  • Page 136 18.4.12 H30 (Compressor Discharge Temperature Sensor Abnormality) Malfunction Decision Conditions  During startup and operation of cooling and heating, the temperatures detected by the outdoor discharge pipe temperature sensor are used to determine sensor errors. Malfunction Caused  Faulty connector connection. ...
  • Page 137 18.4.13 H33 (Unspecified Voltage between Indoor and Outdoor) Malfunction Decision Conditions  The supply power is detected for its requirement by the indoor/outdoor transmission. Malfunction Caused  Wrong models interconnected.  Wrong indoor unit and outdoor unit PCBs used.  Indoor unit or outdoor unit PCB defective.
  • Page 138 18.4.14 H59 (Human Activity Sensor Abnormality) Malfunction Decision Conditions  Feedback signal of human activity sensor. Malfunction Caused  Feedback signal is fixed at 0 VDC or 5 VDC continuously for 25 seconds during ECONAVI or AUTO COMFORT operation.  Feedback signal is detected during ECONAVI or AUTO COMFORT off.
  • Page 139 18.4.15 H70 (Light Sensor Abnormality) Malfunction Decision Conditions  Feedback signal of light sensor. Malfunction Caused  Feedback value is 0 VDC continuously. Troubleshooting When abnormality indication starts again. For safety reason and to prevent Check the connector connection: component breakdown, always switch Turn off the power.
  • Page 140 18.4.16 H97 (Outdoor Fan Motor – DC Motor Mechanism Locked) Malfunction Decision Conditions  The rotation speed detected by the Hall IC during fan motor operation is used to determine abnormal fan motor. Malfunction Caused  Operation stops due to short circuit inside the fan motor winding. ...
  • Page 141 18.4.17 H98 (Error Code Stored in Memory and no alarm is triggered / no TIMER LED flashing) Malfunction Decision Conditions  Indoor high pressure is detected when indoor heat exchanger is detecting very high temperature when the unit is operating in heating operation. ...
  • Page 142 18.4.18 H99 (Indoor Freeze Prevention Protection: Cooling or Soft Dry) Error Code will not display (no Timer LED blinking) but store in EEPROM Malfunction Decision Conditions  Freeze prevention control takes place (when indoor pipe temperature is lower than 2°C). Malfunction Caused ...
  • Page 143 18.4.19 F11 (4-way Valve Switching Failure) Malfunction Decision Conditions  When indoor heat exchanger is cold during heating (except deice) or when indoor heat exchanger is hot during cooling and compressor operating, the 4-way valve is detected as malfunction. Malfunction Caused ...
  • Page 144 18.4.20 F90 (Power Factor Correction Protection) Malfunction Decision Conditions  To maintain DC voltage level supply to power transistor.  To detect high DC voltage level after rectification. Malfunction Caused  During startup and operation of cooling and heating, when Power Factor Correction (PFC) protection circuitry at the outdoor unit main PCB senses abnormal DC voltage level for power transistors.
  • Page 145 18.4.21 F91 (Refrigeration Cycle Abnormality) Malfunction Decision Conditions  The input current is low while the compressor is running at higher than the setting frequency. Malfunction Caused  Lack of gas.  3-way valve close. Troubleshooting When F91 indication happens. For safety reason and to prevent component breakdown, always switch off the power before remove and...
  • Page 146 18.4.22 F93 (Compressor Rotation Failure) Malfunction Decision Conditions  A compressor rotation failure is detected by checking the compressor running condition through the position detection circuit. Malfunction Caused  Compressor terminal disconnect.  Faulty Outdoor PCB.  Faulty compressor. Troubleshooting When F93 indication happens.
  • Page 147 18.4.23 F95 (Outdoor High Pressure Protection: Cooling or Soft Dry) Malfunction Decision Conditions  During operation of cooling or soft dry, when outdoor unit heat exchanger high temperature data is detected by the outdoor unit heat exchanger thermistor. Malfunction Caused ...
  • Page 148 18.4.24 F96 (IPM Overheating) Malfunction Decision Conditions  During operating of cooling and heating, when IPM temperature data (120°C) is detected by the IPM temperature sensor. Multi Models only Compressor Overheating: During operation of cooling and heating, when the compressor OL is activated. Heat Sink Overheating: During operation of cooling and heating, when heat sink temperature data (90°C) is detected by the heat sink temperature sensor.
  • Page 149 18.4.25 F97 (Compress Overheating) Malfunction Decision Conditions  During operation of cooling and heating, when compressor tank temperature data (103°C) is detected by the compressor tank temperature sensor. Malfunction Caused  Faulty compressor tank temperature sensor  2/3 way valve closed ...
  • Page 150 18.4.26 F98 (Input Over Current Detection) Malfunction Decision Conditions  During operation of cooling and heating, when an input over-current (X value in Total Running Current Control) is detected by checking the input current value being detected by current transformer (CT) with the compressor running.
  • Page 151 18.4.27 F99 (DC Peak Detection) Malfunction Decision Conditions During startup and operation of cooling and heating, when inverter DC peak data is received by the outdoor internal DC Peak sensing circuitry. Malfunction Caused  DC current peak due to compressor failure. ...

  • Page 152: Disassembly And Assembly Instructions

    19. Disassembly and Assembly Instructions WARNING High Voltage is generated in the electrical parts area by the capacitor. Ensure that the capacitor has discharged sufficiently before proceeding with repair work. Failure to heed this caution may result in electric shocks. 19.1 Indoor Electronic Controllers, Cross Flow Fan and Indoor Fan Motor Removal Procedures 19.1.1...
  • Page 153 6. Remove the Particular Piece from the 3 hooks. Figure 3 9. Remove the earth wire screw. 11. Detach all connectors as labelled from the Main Electronic Controller. Then pull out the Main Electronic Controller gently. AC303 10. Pull out the Main Electronic Controller halfway.
  • Page 154 19.1.3 To Remove Discharge Grille 13. Pull out and remove the Drain Hose from the Discharge Grille. 12. Remove the 2 screws of the Discharge Grille. 14. Then pull the Discharge Grille downward gently to dismantle it. Figure 6 19.1.4 To Remove Control Board 15.
  • Page 155 19.1.5 To Remove Cross Flow Fan and Indoor Fan Motor 16. Remove the screw that holding the Cross Flow Fan and Fan Motor axis. Figure 8 18. Remove the Bearing by pulling it gently. 17. Remove the screw from the Evaporator. Figure 9...
  • Page 156 Evaporator 19. Push the holdfast to the left and lift up the Evaporator. 21. Fan Motor can be removed after the removal of the Cross Flow Fan. Reminder: To reinstall the Fan Motor, adjust the Fan Motor connector to 60° towards you before fixing Control Board Cross Flow Fan 20.

  • Page 157: Outdoor Electronic Controller Removal Procedure

    19.2 Outdoor Electronic Controller Removal Procedure 19.2.1 CU-RZ25WKR CU-RZ35WKR Caution! When handling electronic controller, be careful of electrostatic discharge. Remove the 5 screws of the Cabinet Top Remove the Control Board as follows: Plate. Screws Release 3 Terminal Cabinet Top Plate Connectors, L, N Screws and Earth Wire Screw.
  • Page 158 19.2.2 CU-RZ42WKR CU-RZ50WKR Caution! When handling electronic controller, be careful of electrostatic discharge. Remove the 5 screws of the Top Panel. Remove the Control Board as follows: Fig. 1 Remove the 8 screws of the Front Panel. Fig. 4 Fig. 2 Remove the screw of the Terminal Board Cover.

  • Page 159: Technical Data

    20. Technical Data Technical data provided are based on the air conditioner running under free frequency. 20.1 Cool Mode Performance Data - Sensible Capacity Chart Unit setting: Standard piping length, Hi Fan, Cool mode at 16°C Voltage: 230V/240V 20.1.1 CS-RZ25WKRW CU-RZ25WKR Cooling Indoor (°C) Outdoor DB (°C)
  • Page 160 20.1.2 CS-RZ35WKRW CU-RZ35WKR Cooling Indoor (°C) Outdoor DB (°C) TC SHC TC SHC TC SHC TC SHC TC SHC TC SHC TC SHC 3245 3117 670 3393 3393 657 3542 3542 645 3690 3123 633 3857 3339 408 3895 3579 379 3823 3418 474...
  • Page 161 20.1.3 CS-RZ42WKRW CU-RZ42WKR Cooling Indoor (°C) Outdoor DB (°C) TC SHC TC SHC TC SHC TC SHC TC SHC TC SHC TC SHC 3894 3740 988 4072 4072 970 4250 4250 952 4428 3747 934 4629 4007 602 4674 4295 560 4587 4101 699 4504 2771 990 4509 3182 994 4515 3240 997 4520 2808 1000 5180 3003 581 5214 3322 568 5081 3214 676 5092 1754 968 5154 2129 936 5216 2284 903 5278 2080 870 5856 1922 551 5849 2460 524 5666 2427 642 4043 3984 941 4127 4127 942 4211 4211 943 4295 4030 944 4748 4328 608 4658 4658 569 4500 4500 696...
  • Page 162 20.1.4 CS-RZ50WKRW CU-RZ50WKR Cooling Indoor (°C) Outdoor DB (°C) TC SHC TC SHC TC SHC TC SHC TC SHC TC SHC TC SHC 4635 4452 1230 4847 4847 1208 5060 5060 1186 5272 4461 1164 5511 4770 750 5564 5113 697 5461 4883 871 5362 3298 1234 5368 3788 1238 5375 3857 1242 5381 3343 1245 6167 3575 724 6207 3955 707 6049 3827 843 6062 2088 1206 6136 2535 1165 6210 2719 1125 6284 2476 1084 6971 2288 686 6963 2928 653 6745 2889 800 4814 4743 1173 4913 4913 1174 5013 5013 1175 5113 4798 1176 5653 5152 758 5545 5545 709 5357 5357 868...

  • Page 163: Heat Mode Performance Data

    2333 2313 2305 2297 2858 3251 3338 3563 1053 2271 2266 2263 2261 2955 3462 3593 3009 20.2.2 CS-RZ35WKRW CU-RZ35WKR Indoor (°C) Outdoor DB (°C) 1547 2501 2608 2650 2693 3159 3455 3678 3982 1549 2748 2762 2767 2773 3329...

  • Page 164: Service Data

    21. Service Data Service data provided are based on the air conditioner running under rated frequency during forced cooling / forced heating mode. 21.1 Cool Mode Outdoor Air Temperature Characteristic Condition - Indoor room temperature: 27°C DryBulb/19°C Wet Bulb - Unit setting: Standard piping length, forced cooling at 16°C, Hi fan - Compressor frequency: Rated for cooling operation - Piping length: 5m - Voltage: 230-240V...
  • Page 165 21.1.2 CS-RZ35WKRW CU-RZ35WKR 18.000 Indoor Discharge Outdoor Air Temperature Temperature (°C) 17.000 (°C) 13.37 16.000 13.45 15.000 13.51 14.04 14.000 14.86 13.000 17.83 Outdoor Air Temperature (°C) 3.900 3.800 Outdoor Cooling Capacity 3.700 Temperature (°C) (kW) 3.600 3.500 3.87 3.400 3.747...
  • Page 166 21.1.3 CS-RZ42WKRW CU-RZ42WKR 16.000 Indoor Discharge Outdoor 15.500 Air Temperature Temperature (°C) 15.000 (°C) 14.500 11.92 14.000 11.98 13.500 12.04 13.000 12.500 12.51 12.000 13.24 11.500 15.89 Outdoor Air Temperature (°C) 4.800 Outdoor Cooling Capacity 4.600 Temperature (°C) (kW) 4.400 4.644 4.200 4.496...
  • Page 167 21.1.4 CS-RZ50WKRW CU-RZ50WKR 13.600 Indoor Discharge Outdoor 13.400 Air Temperature Temperature (°C) 13.200 (°C) 13.000 12.21 12.800 12.28 12.600 11.84 12.400 12.200 12.15 12.000 12.72 11.800 13.55 Outdoor Air Temperature (°C) 5.600 Outdoor Cooling Capacity 5.400 Temperature (°C) (kW) 5.200 5.528 5.000 5.353...

  • Page 168: Heat Mode Outdoor Air Temperature Characteristic

    21.2 Heat Mode Outdoor Air Temperature Characteristic Condition - Indoor room temperature: 20°C DryBulb/-°C Wet Bulb - Unit setting: Standard piping length, forced heating at 30°C, Hi fan - Compressor frequency: Rated for Heating operation - Piping length: 5m - Voltage: 230-240V 21.2.1 CS-RZ25WKRW CU-RZ25WKR 42.000...
  • Page 169 21.2.2 CS-RZ35WKRW CU-RZ35WKR 46.000 Indoor Discharge Outdoor 44.000 Air Temperature Temperature (°C) 42.000 (°C) 40.000 26.62 38.000 36.000 32.18 34.000 33.77 32.000 36.31 30.000 28.000 45.21 26.000 Outdoor Air Temperature (°C) 4.500 Outdoor Heating Capacity 4.000 Temperature (°C) (kW) 3.500 1.549...
  • Page 170 21.2.3 CS-RZ42WKRW CU-RZ42WKR 54.000 Indoor Discharge 52.000 Outdoor Air Temperature 50.000 Temperature (°C) (°C) 48.000 46.000 30.74 44.000 42.000 37.17 40.000 39.00 38.000 36.000 41.94 34.000 52.22 32.000 30.000 Outdoor Air Temperature (°C) 6.000 Outdoor Heating Capacity 5.500 Temperature (°C) (kW) 5.000 4.500...
  • Page 171 21.2.4 CS-RZ50WKRW CU-RZ50WKR 62.000 Indoor Discharge 60.000 Outdoor Air Temperature 58.000 Temperature (°C) 56.000 (°C) 54.000 52.000 34.36 50.000 36.53 48.000 46.000 40.83 44.000 42.000 44.60 40.000 38.000 60.21 36.000 34.000 Outdoor Air Temperature (°C) 7.000 Outdoor Heating Capacity 6.500 Temperature (°C) (kW) 6.000...

  • Page 172: Piping Length Correction Factor

    21.3 Piping Length Correction Factor The characteristic of the unit has to be corrected in accordance with the piping length. 21.3.1 CS-RZ25WKRW CU-RZ25WKR CS-RZ35WKRW CU-RZ35WKR Cooling Capacity 1.010 1.000 1.0015 0.990 0.980 1.0000 0.970 0.9878 0.960 0.950 0.9753 0.940 0.9314 0.930...
  • Page 173 21.3.2 CS-RZ42WKRW CU-RZ42WKR Cooling Capacity 1.020 1.0119 1.010 1.000 1.0000 0.990 0.9792 0.980 0.9550 0.970 0.9085 0.960 0.950 0.940 0.930 0.920 0.910 0.900 Pipe Length (m) Heating Capacity 1.030 1.0261 1.020 1.010 1.0000 1.000 0.9687 0.990 0.980 0.9465 0.970 0.9023 0.960 0.950 0.940...
  • Page 174 21.3.3 CS-RZ50WKRW CU-RZ50WKR Cooling Capacity 1.020 1.0159 1.010 1.0000 1.000 0.9889 0.990 0.9800 0.980 0.9646 0.970 0.960 0.951634 0.950 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 Pipe Length (m) Heating Capacity 1.010...

  • Page 175: Exploded View And Replacement Parts List

    22. Exploded View and Replacement Parts List 22.1 Indoor Unit CWH55025J CWH55051AJ 65810 -467 65810 -467 65810 -467 65810 -467 65810 -467 65810 -467 65810 -467 65810 -467 Note The above exploded view is for the purpose of parts disassembly and replacement. The non-numbered parts are not kept as standard service parts.
  • Page 176 SAFETY REF. NO. PART NAME & DESCRIPTION QTY. CS-RZ25WKRW CS-RZ35WKRW REMARK ← CHASSIS COMPLETE ACXD50C03410 ← FAN MOTOR L6CBYYYL0334 ← CROSS-FLOW FAN COMPLETE ACXH02C01190 ← BEARING ASSY CWH64K1006 ← SCREW - CROSS-FLOW FAN CWH551146 EVAPORATOR ACXB30C31520 ACXB30C31740 ← FLARE NUT (LIQUID) CWT251048 ←...
  • Page 177 SAFETY REF. NO. PART NAME & DESCRIPTION QTY. CS-RZ42WKRW CS-RZ50WKRW REMARK ← CHASSIS COMPLETE ACXD50C03410 ← FAN MOTOR L6CBYYYL0334 ← CROSS-FLOW FAN COMPLETE ACXH02C01190 ← BEARING ASSY CWH64K1006 ← SCREW - CROSS-FLOW FAN CWH551146 EVAPORATOR ACXB30C31740 ACXB30C31530 ← FLARE NUT (LIQUID) CWT251048 ←...

  • Page 178: Outdoor Unit

    22.2 Outdoor Unit 22.2.1 CU-RZ25WKR 65806 -485 65806 -485 Note: The above exploded view is for the purpose of parts disassembly and replacement. The non-numbered parts are not kept as standard service parts.
  • Page 179 ACXB00-01290 V-COIL COMPLETE - 4 WAY VALVE ACXA43C00250 BAG-COMPLETE CWG87C900 V-COIL COMPLETE - EXP. VALVE ACXA43C06110 STRAINER CWB11094 DISCHARGE MUFFLER(4 W.VALVE) CWB121021 PANASONIC BADGE CWE373439 INSTALLATION INSTRUCTION ACXF60-40950 WIRE NET ACXD04-00040A FLEXIBLE PIPE (L-TUBE) CWH5850080 PACKING-L.TUBE CWB81012 CWG861078 BASE BOARD-COMPLETE...
  • Page 180 SAFETY REF. NO. PART NAME & DESCRIPTION QTY. CU-RZ25WKR REMARK SHOCK ABSORBER (LEFT) CWG713778 SHOCK ABSORBER (RIGHT) CWG713779 C.C.CASE ACXG50-48891 MODEL LABEL ACXF85-48590 INDICATION LABEL -R32 CWF746074 (NOTE)  All parts are supplied from PAPAMY, Malaysia (Vendor Code: 00029488). “O” marked parts are recommended to be kept in stock.
  • Page 181 22.2.2 CU-RZ35WKR 65805 -486 65805 -486 Note: The above exploded view is for the purpose of parts disassembly and replacement. The non-numbered parts are not kept as standard service parts.
  • Page 182 PLATE - C. B. COVER TERMINAL CWH131301 CONTROL BOARD COVER CO. CWH13C1359 REACTOR G0C392J00037 V-COIL COMPLETE - 4-WAY VALVE ACXA43C00250 V-COIL COMPLETE - EXP.VALVE ACXA43C06110 WIRE NET ACXD04-00040A PANASONIC BADGE CWE373439 INSTALLATION INSTRUCTION ACXF60-40950 BAG-COMPLETE CWG87C900 FLEXIBLE PIPE (L-TUBE) CWH5850080...
  • Page 183 SAFETY REF. NO. PART NAME & DESCRIPTION QTY. CU-RZ35WKR REMARK PACKING-L.TUBE CWB81012 CWG861078 BASE BOARD-COMPLETE CWG62C1223 SHOCK ABSORBER (LEFT) CWG713778 SHOCK ABSORBER (RIGHT) CWG713779 C.C.CASE ACXG50-48891 MODEL LABEL ACXF85-48600 INDICATION LABEL -R32 CWF746074 (NOTE)  All parts are supplied from PAPAMY, Malaysia (Vendor Code: 00029488). ...
  • Page 184 22.2.3 CU-RZ42WKR CU-RZ50WKR CU-RZ42WKR 65806 -486 65806 -486 CU-RZ50WKR 65807 -486 65807 -486 Note: The above exploded view is for the purpose of parts disassembly and replacement. The non-numbered parts are not kept as standard service parts.
  • Page 185 PLATE - C. B. COVER TERMINAL CWH131470 ← CONTROL BOARD COVER CO. CWH13C1253 REACTOR G0C752J00004 G0C392J00027 ← V-COIL COMPLETE - 4-WAY VALVE ACXA43C00250 ← V-COIL COMPLETE - EXP. VALVE ACXA43C06110 ← WIRE NET CWD041200A ← PANASONIC BADGE CWE373439 ← INSTALLATION INSTRUCTION ACXF60-40950 ← BAG-COMPLETE CWG87C900...
  • Page 186 SAFETY REF. NO. PART NAME & DESCRIPTION QTY. CU-RZ42WKR CU-RZ50WKR REMARK ← FLEXIBLE PIPE (L-TUBE) CWH5850080 ← PACKING-L.TUBE CWB81012 ← CWG861078 ← BASE BOARD-COMPLETE CWG62C1144 ← SHOCK ABSORBER (LEFT) CWG713415 ← SHOCK ABSORBER (RIGHT) CWG713416 ← C.C.CASE ACXG50-48900 MODEL LABEL ACXF85-48610 ACXF85-48620 ←...

This manual is also suitable for:

Cs-rz25wkrwCs-rz42wkrwCs-rz50wkrwCu-rz25wkrCu-rz35wkrCu-rz42wkr ... Show all

Table of Contents